Battery for a headphone



FIG. 1 is a front elevation view of a battery for a headphone.

FIG. 2 is a rear elevation view of the battery for a headphone seen in FIG. 1.

FIG. 3 is a left elevation view of the battery for a headphone.

FIG. 4 is a right elevation view of the battery for a headphone.

FIG. 5 is a top plan view of the battery for a headphone.

FIG. 6 is a bottom plan view; and,

FIG. 7 is an isometric view of the battery for a headphone.

The broken lines represent portions of the battery for a headphone and form no part of the claimed design. 

CLAIM The ornamental design for a battery for a headphone, as shown and described. 